CN108499882B

CN108499882B - Address error correction parcel sorting method based on time difference principle

Info

Publication number: CN108499882B
Application number: CN201810101442.3A
Authority: CN
Inventors: 陈勇; 胡良斌; 程巍; 高丽娟; 刘赞; 王中长
Original assignee: University of South China
Current assignee: University of South China
Priority date: 2018-02-01
Filing date: 2018-02-01
Publication date: 2020-02-11
Anticipated expiration: 2038-02-01
Also published as: CN108499882A

Abstract

The address error correction parcel sorting method based on the time difference principle is applied to a logistics sorting system with the functions of error checking, error correction and error correction; the process is as follows: 1, outputting packages which are input at intervals in a disordered way in an equidistant arrangement mode; 2, scanning bar code information by a parcel scanned device; 3, orderly converging the packages onto a converging conveyor; 4, the packages are sequentially distributed to a plurality of distribution conveying belts through a distributor; 5, checking whether the package is missing; 6, sorting the packages into corresponding collection boxes; 7, closing the collection bag to reach the closing standard; 8, transferring the collection bag to an object stage; 9, automatically opening a collecting bag in the collecting box after the collecting bag is transferred out; the collection bag is transferred to the conveyor C by means of a pusher 10. The invention adds an error correction link with address error checking-correcting-error checking functions before the package classifying and bagging link, thereby preventing the code scanning address from being misplaced with the package address and improving the sorting accuracy.

Description

Address error correction parcel sorting method based on time difference principle

Technical Field

The invention relates to the technical field of express sorting, in particular to an address error correction package sorting method based on a time difference principle.

Background

In the information age today, logistics is a very important link, especially in the current internet +, O2O economic model. The current consumers, especially the young generation, are more inclined to shop online, so the daily traffic of home and abroad express delivery is very huge. In the process of express delivery transportation, it is indispensable to sort the express delivery, and this process has decided whether the express delivery can be carried to the correct direction.

In the existing express companies, express sorting is still carried out in a manual sorting mode. The manual sorting has the defects of high error rate, low efficiency, large workload, violent sorting and the like.

Present express delivery letter sorting equipment has can realize that the express delivery is automatic to be swept the sign indicating number, sort, classify and deposit, has alleviateed express delivery letter sorting personnel's work load to a certain extent, still has following weak point:

1. the package can accidentally drop when running on the sorting production line, if the situation occurs after the code scanning link of the package address, subsequent large-scale sorting errors can be caused, and the reliability is poor under the condition of no early warning and coping measures.

2. The existing express sorting equipment is mostly conveying belt assembly line type multistage sorting equipment with spread planes, the occupied area is large, and the space utilization rate is low.

3. The existing express sorting equipment has certain slow links, such as parcel address code scanning, and the bottleneck effect formed by the slow links can cause the low efficiency of the whole sorting production line.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides an address error correction parcel sorting method based on the time difference principle, which can realize automatic code scanning, sorting, bagging and whole bag output of parcels, has higher automation degree, space utilization rate and sorting efficiency, and effectively avoids the interference of parcel dropping on a sorting production line on sorting accuracy.

The technical scheme of the invention is as follows: the address error correction parcel sorting method based on the time difference principle is applied to a logistics sorting system with the functions of error checking, error correction and error correction;

the logistics sorting system with the functions of error checking, error correcting and error correcting comprises a gradual fetching and separating device, a code scanning device, a package aligning device, a converging conveyor, an error correcting device, a splitter, a splitting conveyor belt, a tower type sorting device and a controller;

the gradually-taking separation device comprises a conveyor A, a smooth separation plate, a roller conveyor and a conveyor B which are arranged next to each other from front to back in sequence;

the wrapping and aligning device comprises a roller conveyor, a bracket B, a partition plate and an aligning component; the roller conveyor comprises a plurality of rollers arranged in parallel and a roller driving mechanism for driving all the rollers to synchronously rotate; the alignment assembly comprises a cylinder, a baffle and a photoelectric correlation sensor A; all the rollers form a rolling transfer surface B at the upper end, and the rolling transfer surface B is divided into a plurality of wrapping transfer channels by the partition boards;

the error correction device comprises a code scanner and a timing counter which are sequentially arranged from far to near along the rear end of the confluence conveyor;

the flow divider comprises a rotating frame, a driving motor P, a lifting plate and a small-segment conveyor belt assembly; the small section conveying belt component comprises a small section conveying belt, a driving motor Q and a photoelectric correlation sensor B;

the tower type sorting device comprises a sorter, a wrapping device, a pusher and a conveyor C;

the sorting device comprises a plurality of sorting devices, wherein the sorting devices are stacked in the vertical direction, a cylindrical central channel is arranged in the central area of each sorting device, and the central channels of the sorting devices are sequentially communicated to form a vertical and coherent package conveying channel; the sorter comprises a bottom plate, a bushing plate, a collecting box, a collecting bag, a supporting seat, a rotary driving mechanism A, a shifting fork and a rotary driving mechanism B; the collecting box comprises a box bottom plate, an upright post, a lifting frame, a lifting control mechanism, a closing-in component, an electromagnet A, an electromagnet B and an ultrahigh and overweight detection component, wherein the ultrahigh and overweight detection component comprises a wrapped ultrahigh detector and a wrapped overweight detector; the box bottom plate is provided with a left inner boss, a left outer boss, a right inner boss and a right outer boss at four corners respectively; the lifting control mechanism comprises a steel wire rope, a servo motor A and a take-up and pay-off wheel; the closing-in assembly comprises a servo motor B and a gear; the collecting bag comprises a bag body, a drawstring and an iron sheet; the four corners of the upper edge opening of the bag body are respectively provided with outward-turned lugs, and iron rings are fixedly connected on the lugs;

the parcel taking device comprises a lifting driver, an object stage and a goods taking manipulator; the goods taking manipulator comprises a mechanical arm, a rotating shaft seat, a clamping plate body and a swing driving mechanism; the splint body comprises a left iron plate, a right electromagnetic plate, a rotating pin and a torsion spring; the swing driving mechanism comprises a supporting hydraulic cylinder, a movable chain link and a sliding block;

the pusher comprises an electric hydraulic cylinder and a push plate;

before sorting the packages, the logistics sorting system with the functions of error checking, error correcting and error correcting is in an initial state, and in the initial state:

a. the roller conveyor of the gradual taking separation device is in a running state;

b. the roller conveyor of the wrapping and aligning device is in a running state;

c. the baffle of the package and alignment device is positioned at the uppermost end of the operation stroke of the package and alignment device, and the package delivery channel is separated by the baffle at the moment;

d. one small section of the conveyor belt of the flow divider is over against the rear end of the confluence conveyor, and the other three small sections of the conveyor belts are over against the front end of the diversion conveyor belt;

e. a plurality of collecting bags are stacked and arranged on the box bottom plate of the collecting box;

f. the lifting frame of the collecting box is positioned at the uppermost end of the movement stroke of the collecting box, and absorbs and opens a collecting bag through the electromagnet A, B at the lower end of the lifting frame;

g. the two electromagnets A of the collecting box are opposite to the left inner boss and the left outer boss of the box bottom plate of the collecting box;

h. taking the object stage of the wrapper to be at the lowest position of the motion stroke of the object stage;

i. the goods taking mechanical hand of the parcel taking device is positioned at the lowest end of the rotation stroke of the goods taking mechanical hand;

j. taking the right electromagnetic plate of the wrapper to be in a power-on state;

k. a piston rod of an electric hydraulic cylinder of the pusher is in a contraction state;

the parcel sorting process comprises the following steps:

s01, the parcels input by the conveyor A at intervals in a disordered arrangement are arranged and output on the conveyor B at equal intervals through the pick-by-pick separation device:

a. placing the parcels on a conveyor A in operation, and after the parcels are discharged from the rear end of the conveyor A, entering and standing on a smooth separation plate;

b. then the packages enter the package contact of the smooth separating plate and push the packages entering the smooth separating plate, so that the packages entering the smooth separating plate are pushed to a roller conveyor;

c. the parcels at the front end are driven by the roller conveyor to move so as to be separated from the parcels at the rear end, the parcels enter a running conveyor B after being discharged from the roller conveyor, and the parcel intervals on the conveyor B are equal;

s02, the parcel on the conveyor B is scanned by the code scanner for bar code information:

the packages are scanned on the conveyor B by the code scanning device, address information obtained by scanning is transmitted to the controller, and the controller generates a package sequencing list on each shunting conveyor belt and a sorting route of each package in the tower type sorting device according to a confluence rule set by a subsequent package combining and aligning device and a shunting rule set by a diverter;

s03, orderly converging the parcels discharged by the plurality of conveyors B onto a converging conveyor through the parcel alignment device:

a. the packages discharged from the conveyor B enter a package transfer channel of a package aligning device corresponding to the conveyor B, and the packages are driven by the running roller conveyor to move towards the outlet of the package transfer channel;

b. when a package of any package conveying channel collides with the baffle of the first group of aligning components, the package stops moving and triggers the photoelectric aligning sensor A of the first group of aligning components, the photoelectric aligning sensor A immediately transmits a signal to the controller, the controller immediately controls the cylinder to start after receiving the signal, a piston rod of the cylinder retracts downwards to further drive the baffle to fall, and when the baffle falls to a height which is integrally lower than a rolling conveying surface B of the package aligning device, the blocked package is released; at the moment, the front-back distance of the parcel to the rest parcel delivery channels is shortened;

c. when the parcels in any parcel delivery channel sequentially collide with the baffles of other groups of parallel assemblies behind the first group, the control process in the step b is repeated; finally, the parcels in all the parcel delivery channels are arranged in order to form a line, the line of parcels discharged from the outlets of all the parcel delivery channels simultaneously falls on a converging conveyor in operation and forms a line, and the line of parcels moves towards the direction of the rear end of the converging conveyor;

s04, the packages discharged by the confluence conveyor are sequentially distributed on a plurality of distribution conveyor belts through a distributor:

the three shunting conveyor belts are numbered as b, c and d respectively, the four small conveyor belts are numbered as A, B, C, D respectively, 12 packages which are connected on the confluence conveyor are arranged into a group, and the groups of packages are numbered as ①, ②, ③, ④, ⑤, ⑥, ⑦, ⑧, ⑨, ⑩, ② 0 and ② 1 in sequence according to the discharging sequence;

a. when a package ① discharged by the confluence conveyor falls on the rotating frame, a photoelectric corresponding to the A senses the package and transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, controlling a driving motor P to start, rotating the rotating frame by a station to enable the A to face the D, the B to face the confluence conveyor, the C to face the B and the D to face the C, 2, controlling a driving motor Q corresponding to the A to start, and the A and the package ① on the A synchronously run;

b. when a parcel ② discharged by the confluence conveyor falls on a parcel B, a photoelectric correlation sensor B346 corresponding to the parcel B senses the parcel and transmits an electric signal to a controller, and the controller immediately and simultaneously performs two controls after receiving the signal, namely 1, controlling a driving motor P to start, rotating a rotating frame by one station to enable the A to be over against C, the B to be over against D, the C to be over against the confluence conveyor and the D to be over against B;

c. when a parcel ③ discharged by the confluence conveyor falls on a parcel C, a photoelectric correlation sensor B corresponding to the parcel C senses the parcel and then transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P is controlled to start, a rotating frame is rotated by one station, so that A is opposite to D, B is opposite to C, C is opposite to D, and D is opposite to the confluence conveyor;

d. when a package ④ discharged by a confluence conveyor falls on a package D, a photoelectric correlation sensor B corresponding to the package D senses the package and transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P to start, a rotating frame to rotate by one station to enable the A to be opposite to the confluence conveyor, the B to be opposite to the B, the C to be opposite to the C and the D to be opposite to the D;

e, when a parcel ⑤ discharged by the confluence conveyor falls on the conveyor A, a photoelectric correlation sensor B corresponding to the conveyor A senses the parcel and transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P to start, a rotating frame to rotate by one station, so that the A is over against D, the D is over against C, the C is over against B, and the B is over against the confluence conveyor 2, a driving motor Q corresponding to the C is controlled to start, and the C and a parcel ③ thereon synchronously run;

f, when a parcel ⑥ discharged by the confluence conveyor falls on a parcel B, a photoelectric correlation sensor B corresponding to the parcel B senses the parcel and then transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P to be started, a rotating frame to rotate by one station to enable the A to be over against C, the B to be over against D, the C to be over against the confluence conveyor and the D to be over against B;

g, when a parcel ⑦ discharged by the confluence conveyor falls on a parcel C, a photoelectric correlation sensor B corresponding to the parcel C senses the parcel and transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P to start, a rotating frame to rotate by one station, so that A is over against B, B is over against C, C is over against D, and D is over against the confluence conveyor;

h, when a package ⑧ discharged by the confluence conveyor falls on a package D, a photoelectric correlation sensor B corresponding to the package D senses the package and transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P to start, a rotating frame to rotate by one station to enable the A to be over against the confluence conveyor, the B to be over against B, the C to be over against C and the D to be over against D;

when a parcel ⑨ discharged by a confluence conveyor falls on a, a photoelectric correlation sensor B corresponding to the A senses the parcel and transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P is controlled to start, a rotating frame is rotated by one station to enable the A to be over against D, the B to be over against the confluence conveyor, the C to be over against B and the D to be over against C;

j. when a parcel ⑩ discharged by the confluence conveyor falls on a parcel B, a photoelectric correlation sensor B corresponding to the parcel B senses the parcel and then transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, controlling a driving motor P to start, rotating a rotating frame by one station to enable the A to be opposite to C, the B to be opposite to D, the C to be opposite to the confluence conveyor and the D to be opposite to B;

k, when a parcel ⑪ discharged by the confluence conveyor falls on the C, a photoelectric correlation sensor B346 corresponding to the C senses the parcel and transmits an electric signal to the controller, and the controller immediately and simultaneously controls 1, controlling a driving motor P to start, rotating a rotating frame by one station to enable A to be over against B, B to be over against C, C to be over against D and D to be over against the confluence conveyor, 2, controlling a driving motor Q corresponding to the A to start, and enabling the A and a parcel ⑨ on the A to synchronously run;

i, when packages ⑫ discharged by a confluence conveyor fall on a device D, a photoelectric correlation sensor B corresponding to the device D senses the packages and transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P to start, a rotating frame to rotate by one station to enable the device A to be over against the confluence conveyor, the device B to be over against B, the device C to be over against C and the device D to be over against D;

m, when the next group of parcels ① discharged by the confluence conveyor falls on A, repeating the steps from a to l for control, and repeating the steps in such a way to realize orderly distribution of the parcels discharged by the confluence conveyor to three distribution conveyor belts;

s05, checking whether the packages on the distribution conveyor belt have the missing condition through an error correction device:

a. counting is started when the front end of a first parcel on the shunting conveyor belt passes through an infrared channel of the timing counter, and counting is +1 when the front end of a second parcel passes through the infrared channel of the timing counter; timing is started when the rear end of a first parcel on the shunting conveyor belt passes through an infrared line of a timing counter, and timing is stopped when the front end of a second parcel passes through the infrared line of the timing counter; thus, a timing counting cycle is completed, and the next timing counting cycle is started at the same time, wherein in each timing counting cycle, the timing is started from 0 second, and the counting adopts an accumulation mode;

b. the timing counter continuously compares timing data differences of two adjacent parcels before and after the parcel is checked for error, if the parcel is checked to be missing, the timing counter immediately sends an alarm signal to the controller, the controller starts the code scanner after receiving the alarm signal, and the code scanner scans the address of the first parcel after the vacancy is found and sends the address to the controller; the controller searches a package address corresponding to a first counting number before vacancy in a package sorting list, then searches backwards from the package address, relocates the address of the first package after vacancy, calculates the missing number of the packages according to the relocated address, and finally replaces the address of the missing package with a blank address in the package sorting list to prevent subsequent sorting errors;

c. the controller starts a code scanner, the code scanner scans the address of the second package after vacancy and sends the address to the controller, the controller contrasts and identifies whether the address information of the package is consistent with the corresponding package information in the package sorting list, if so, the controller does not act, and if not, the controller controls the whole logistics sorting system to stop running, so that sorting errors are prevented;

in the step, when the number of the missing packages is more than or equal to three, the controller controls the whole logistics sorting system to stop running and simultaneously triggers an external alarm to alarm so as to remind an operator to process the packages;

s06, the parcels discharged from the confluence conveyor and entering the tower type sorting device are sorted into the corresponding collection boxes:

a. after being discharged from the diversion conveyor belt, the packages fall on the temporary stop area of the upper transfer plane of the sorter on the uppermost layer of the tower type sorting device, the controller controls the rotary driving mechanism A to act according to a pre-calculated sorting route of the packages, so that the package falling holes A of the bushing selectively face the opening at the upper end of the collecting box or the package falling holes B of the bottom plate, then the rotary driving mechanism B is controlled to act, the packages are shifted to the package falling holes A of the bushing through the shifting fork, and the packages fall into the temporary stop area of the upper transfer plane of the collecting box of the sorter on the layer or the sorter on the next layer through the package falling holes A of the bushing;

b. after the packages reach the temporary stop area of the upper transfer plane of the new layer of sorter, repeating the control process of the step a, and finally enabling the packages to fall into the corresponding collection boxes of the corresponding layer of sorter;

s07, automatically closing the collection bag meeting the closing standard by the collection box: when the package in the collecting box reaches the preset weight or height, the package overweight detector or the package ultrahigh detector immediately alarms to the controller, the controller controls two servo motors B to start simultaneously after receiving an alarm signal, the two servo motors B respectively drive the gear to move along the rack on the side wall of the gear accommodating cavity, the two servo motors B respectively move in the motor chutes of the inner arc-shaped side rod and the outer arc-shaped side rod, the electromagnet A gradually approaches to the electromagnet B, when the electromagnet A moves to the position closest to the electromagnet B, the servo motor B stops moving, and the opening at the upper end of the collecting bag is closed;

s08, transferring the closed collection bag to an object stage through a goods taking mechanical arm:

a. after the upper end opening of the collecting bag is closed, the controller controls the lifting driver to act, and the object stage 52 is lifted to the height corresponding to the alarming collecting box;

b. the controller performs two controls simultaneously: 1. controlling a piston rod of the supporting hydraulic cylinder to extend out, and pushing the goods taking manipulator upwards to enable the clamping plate body to approach the iron sheet of the collecting bag; 2. controlling the right electromagnetic plate to be powered off, so that the closed clamping plate body is opened under the action of the torsion spring, and the opened clamping plate body is opposite to the iron sheet of the collecting bag;

c. after the splint body is opened for a plurality of seconds, the controller controls the right electromagnetic plate to be electrified to close the splint body, the iron sheet of the collection bag is adsorbed to the right electromagnetic plate while the splint body is closed, and after the splint body is closed, the iron sheet of the collection bag is clamped between the left iron plate and the right electromagnetic plate of the splint body;

d. after the iron sheet of the collecting bag is clamped, the controller firstly controls the electromagnet A and the electromagnet B to be powered off to disconnect the collecting bag from the collecting box, and then controls the piston rod of the supporting hydraulic cylinder to further extend out to further push the goods taking manipulator upwards so as to tighten the upper end opening of the collecting bag, pull the collecting bag out of the package pulling-out opening of the collecting box and fall on the objective table;

s09, automatically opening a collecting bag in the collecting box after the collecting bag in the collecting box is transferred out:

a. the wrapping overweight detector of the collecting box detects that the collecting bag is pulled away, and transmits a signal to the controller, the controller receives the signal and controls the two servo motors B to start, a crankshaft of the servo motor B rotates to drive the gear to move along the rack meshing on the side wall of the gear accommodating cavity, the two servo motors B respectively move in the motor sliding grooves of the inner arc-shaped side rod and the outer arc-shaped side rod, the electromagnet A gradually moves away from the electromagnet B, and the electromagnet A stops moving when moving to the initial position;

b. the controller controls the servo motor A to start, the steel wire rope is put down, the lifting frame slides downwards along the sliding groove of the upright post through the sliding block, and after the steel wire rope is emptied, the lifting frame slides to a height close to the bottom plate of the box;

c. the controller then controls the two electromagnets A and the two electromagnets B to be electrified, and the electromagnets A and the electromagnets B respectively adsorb 4 lug pieces of the uppermost layer of the collection bag sleeved on the left inner boss, the left outer boss, the right inner boss and the right outer boss of the box bottom plate, so that the collection of the collection bag is completed;

d. the controller finally controls the servo motor A to start, the steel wire rope is retracted, the steel wire rope drives the lifting frame to ascend, and the lifting frame drives the newly picked collecting bag to ascend and finally ascend to the initial position;

s10, the collection bag on the stage is transferred to the conveyor C by the pusher:

a. after the parcel falls on the objective table, the controller carries out three controls simultaneously: 1. controlling the right electromagnetic plate to be powered off, and loosening the iron sheet of the collecting bag; 2. controlling a piston rod of the supporting hydraulic cylinder to retract so that the goods taking manipulator falls to the lowest position; 3. controlling the lifting driver to act to enable the objective table to descend to the lowest position;

b. after the objective table descends to the lowest position, the controller controls the piston rod of the electric hydraulic cylinder to extend out, the collecting bag on the objective table is pushed to the conveyor C through the push plate, and after the action is finished, the piston rod of the electric hydraulic cylinder retracts to wait for the next instruction.

The further technical scheme of the invention is as follows: in step S01, the parcels are placed in a row on the conveyor a; the running speed of the conveyor A is less than the rolling linear speed of the roller conveyor and less than or equal to the running speed of the conveyor B; the running speeds of all the conveyors B are consistent; in step S03, the running speed of the roller conveyor is greater than the running speed of the conveyor B.

Compared with the prior art, the invention has the following advantages:

1. aiming at the problems that the conveying distance between an address code scanning link and a package classifying and bagging link is long in the logistics sorting process, packages are prone to falling off, and the actual sequence of the packages is staggered with the code scanning address sequence, an error correction link with the address error checking-correcting-error checking function is added before the package classifying and bagging link, dislocation of code scanning addresses and package addresses is prevented, and sorting accuracy is improved.

2. The express sorting method provided by the invention is based on a logistics sorting system with the functions of error checking, error correcting and error correcting, has higher automation degree, can realize automatic code scanning of packages, address classification and bagging, whole bag packaging and whole bag conveying to a conveying belt, and has the advantages of lower workload of couriers, lower sorting error rate and higher sorting efficiency compared with manual sorting.

3. Aiming at the problem that the whole sorting production line cannot be fast due to a slow link (such as address code scanning) existing in the conventional logistics sorting production line, the code scanning link is divided into a plurality of parallel lines running simultaneously, and then the packages on the plurality of parallel lines are taken out one by one according to the line to be combined into an ordered package fast line, so that the sorting efficiency of the whole logistics sorting line is improved.

4. Aiming at the problem that the floor area is large when the existing logistics sorting assembly line is used for carrying out plane spreading sorting through a conveying belt, the invention realizes the functions of sorting packages in the vertical direction and automatically packing and outputting after sorting through the tower type sorting device, and compared with the existing sorting method, the logistics sorting assembly line has small floor area and integrated functions.

The invention is further described below with reference to the figures and examples.

Drawings

Fig. 1 is a schematic structural diagram of a logistics sorting system with error checking-correcting functions;

FIG. 2 is a schematic view of the construction of the roller conveyor of the singulating separator;

FIG. 3 is a schematic view of the wrapping and aligning device;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a schematic view of the diverter;

FIG. 6 is a schematic structural view of a tower type sorting device;

FIG. 7 is a schematic diagram of the structure of a sorter of the tower sorting device;

FIG. 8 is a schematic view of the structure of the bottom plate of the sorter;

FIG. 9 is a schematic view of a bushing of the sorter;

FIG. 10 is a schematic view of a collection bin of the sorter from a certain perspective;

FIG. 11 is a schematic view of the collection bin of the sorter from another perspective;

FIG. 12 is an enlarged view of portion A of FIG. 11;

FIG. 13 is a schematic view of the structure of a collection bag of the sorter;

fig. 14 is a schematic structural diagram of a wrapper taking device of the tower type sorting device;

FIG. 15 is an enlarged view of portion B of FIG. 14;

FIG. 16 is a schematic view of the structure of the clip body of the wrapper extractor;

FIG. 17 is a schematic structural view of a housing of the tower type sorting device;

FIG. 18 is a schematic view showing an initial state of the diverter before the step S04 begins;

fig. 19 is a schematic view of a state of a substep in step S04;

fig. 20 is a state diagram of the division step in the step S04.

Illustration of the drawings: the device comprises a pick-and-place separating device 1, a conveyor A11, a smooth separating plate 12, a roller conveyor 13, a roller 131, a bracket A132, a roller driving mechanism 133, a driving motor X1331, a chain X1332, a chain wheel X1333, a conveyor B14, a code scanning device 100, a package aligning device 2, a confluence conveyor 200, a roller conveyor 21, a roller 211, a roller driving mechanism 212, a driving motor Y2121, a chain Y2122, a chain wheel Y2123, a bracket B22, a partition 23, an aligning assembly 24, a cylinder 241, a baffle 242, an optoelectronic correlation sensor A243, a rolling transfer surface B, a package transfer channel 20, an error correction device 300, a code scanner 301, a timing counter 302, a flow divider 3, a rotating frame 31, a vertical rotating rod 311, a cantilever 312, a driving motor P32, a lifting plate 33, a small segment conveyor belt assembly 34, a conveyor belt 341, a driving roller 342, a driven roller segment 343, a roller seat 344, a driving motor Q345, an optoelectronic correlation sensor B346, a flow dividing, Sorter 4, central channel 41, bottom plate 42, central hole B421, package falling hole B422, annular groove B423, bushing 43, central hole A431, package falling hole A432, annular groove A433, collection box 44, box bottom plate 441, left inner boss 4411, left outer boss 4412, right inner boss 4413, right outer boss 4414, upright 442, chute 4421, crane 443, inner arc-shaped side rod 4431, left side rod 4432, outer arc-shaped side rod 4433, right side rod 4434, roller 4435, moving channel 4436, motor chute 44361, gear accommodating cavity 44362, lifting control mechanism 444, steel wire rope 4441, servo motor A4442, retracting wheel 4443, closing-in component 445, servo motor B4451, gear 4452, electromagnet A446, electromagnet B447, package pulling outlet 448, collection bag 45, bag body 451, drawing rope installing cavity 4511, inlet 45111, outlet 45112, lug 4512, iron ring 4513, drawing rope 452, iron sheet supporting seat 462, lower ring supporting seat 462, 453 and rotary rod 44462, The wrapping machine comprises a rotary driving mechanism A47, a driving sprocket A471, a stepping motor A472, a driven sprocket A473, a chain A474, a shifting fork 48, an upper rotary ring 481, a sweeping arm 482, a rotary driving mechanism B49, a driving sprocket B491, a stepping motor B492, a driven sprocket B493, a chain B494, a wrapping machine taking device 5, a lifting driver 51, a loading table 52, a goods taking manipulator 53, a mechanical arm 531, a chute 5311, a rotating shaft 532, a rotating shaft seat 533, a clamping plate body 534, a left iron plate 5341, a right electromagnetic plate 5342, a rotating pin 5343, a torsion spring 5344, a swing driving mechanism 535, a supporting hydraulic cylinder 5351, a movable link 5352, a sliding block 5353, a pushing device 6, an electric hydraulic cylinder 61, a pushing plate 62, a conveyor C500, a housing 600, a wrapping inlet 601, a wrapping outlet 602, a base 700 and a wrapping conveying channel 800.

Detailed Description

Example 1:

the address error correction parcel sorting method based on the time difference principle is applied to a logistics sorting system with the functions of error checking, error correction and error correction.

The logistics sorting system with the functions of error checking, error correcting and error correcting comprises a gradual fetching and separating device 1, a code scanning device 100, a package aligning device 2, a converging conveyor 200, an error correcting device 300, a splitter 3, a splitting conveyor belt 400 and a tower type sorting device.

The take-by-take separating apparatus 1 includes a conveyor a11, a smooth separating plate 12, a roller conveyor 13, and a conveyor B14, which are disposed immediately adjacent in this order from front to back.

The wrapping and aligning device 2 comprises a roller conveyor 21, a bracket B22, a partition plate 23 and an aligning assembly 24. The roller conveyor 21 includes a plurality of rollers 211 arranged in parallel and a roller driving mechanism 212 for driving all the rollers 211 to rotate synchronously. The alignment assembly 24 includes a cylinder 241, a baffle 242, and a photoelectric correlation sensor a 243. All the rollers 211 form a rolling transfer surface B at the upper end, and the partition plates 23 divide the rolling transfer surface B into a plurality of parcel transfer channels 20.

The error correction device 300 includes a scanner 301 and a timer counter 302 arranged in this order from the rear to the front in the advancing direction of the junction conveyor 200.

The diverter 3 includes a rotating frame 31, a driving motor P32, a lifting plate 33 and a small segment conveyor belt assembly 34. The small segment conveyor assembly 34 includes a small segment conveyor 341, a drive motor Q345, and a photo correlation sensor B346.

The tower type sorting device comprises a sorter 4, a parcel taking device 5, a pusher 6 and a conveyor C500.

The sorters 4 are stacked in a vertical direction, a central area of each sorter 4 is provided with a cylindrical central passage 41, and the central passages 41 of the sorters 4 are sequentially communicated to form a vertical continuous parcel transport passage 800. Sorter 4 includes base plate 42, nozzle plate 43, collection box 44, collection bag 45, support base 46, rotary drive a47, fork 48, and rotary drive B49. The collecting box 44 comprises a box bottom plate 441, a vertical column 442, a lifting frame 443, a lifting controller 444, a closing-up component 445, an electromagnet A446, an electromagnet B447 and an ultra-high and ultra-heavy detection component. The bottom plate 441 is provided with a left inner boss 4411, a left outer boss 4412, a right inner boss 4413 and a right outer boss 4414 at four corners, respectively. The lifting control mechanism comprises a steel wire rope 4441, a servo motor A4442 and a take-up and pay-off wheel 4443. The necking-in assembly comprises a servo motor B4451 and a gear 4452. The collection bag 45 includes a bag body 451, a drawstring 452, and an iron piece 453. Four corners of the upper edge opening of the bag body 451 are respectively provided with an everted lug 4512, and the lug 4512 is fixedly connected with an iron ring 4513.

The extractor 5 includes a lifting drive 51, a stage 52 and a pick robot 53. The pickup manipulator 53 includes a manipulator 531, a spindle 532, a spindle base 533, a gripper 534, and a swing driving mechanism 535. The clamping plate 534 includes a left iron plate 5341, a right electromagnetic plate 5342, a rotating pin 5343 and a torsion spring 5344. Swing actuator 535 includes a support cylinder 5351, a movable link 5352, and a slider 5353.

The pusher 6 comprises an electric hydraulic cylinder 61 and a push plate 62.

a. the roller conveyor 13 of the take-by-take separating device 1 is in an operating state;

b. the roller conveyor 21 of the wrapping and aligning device 2 is in a running state;

c. the baffle 242 of the package aligning device 2 is at the uppermost end of the operation stroke, and the package delivery channel 20 is blocked by the baffle 242 at the moment;

d. one small segment of the conveyor belt 341 of the diverter 3 faces the rear end of the confluence conveyor 200, and the other three small segments of the conveyor belt 341 face the front end of the diversion conveyor 400;

e. a plurality of collecting bags 45 are stacked and mounted on the bottom plate 441 of the collecting box 44;

f. the elevation 443 of the collection box 44 is positioned at the uppermost end of its movement stroke, and absorbs and opens one collection bag 45 by the electromagnet A, B at its lower end;

g. the two electromagnets A446 of the collecting box 44 are opposite to the left inner boss 4411 and the left outer boss 4412 of the box bottom plate 441 of the collecting box 44;

h. the carrier 52 of the parcel device 5 is at the lowest position of its movement stroke;

i. the pick manipulator 53 of the parcher 5 is at the lowest end of its rotational travel;

j. taking the right electromagnetic plate 5342 of the wrapper 5 to be in an electrified state;

k. the piston rod of the electric hydraulic cylinder 61 of the kicker 6 is in a contracted state.

The parcel sorting process comprises the following steps:

a. the packages are placed on conveyor a11, which is in operation, and enter and rest on a smooth separator plate after being discharged from the rear end of conveyor a 11;

b. then enters the package contact of the smooth separation plate 12 and pushes the package entering the smooth separation plate 12 first, so that the package entering the smooth separation plate 12 first is pushed up to the roller conveyor 13;

c. the parcels at the front end are driven by the roller conveyor 13 to move so as to be separated from the parcels at the rear end, the parcels enter the running conveyor B after being discharged from the roller conveyor 13, and the parcel intervals on the conveyor B are equal.

In this step, the parcels are placed in a row on conveyor A.

In this step, the running speed of the conveyor A is less than the rolling linear speed of the roller conveyor 13 and less than or equal to the running speed of the conveyor B.

In this step, the operation speeds of the conveyors B are the same.

S02, the parcel on the conveyor B is scanned by the barcode scanning device 100 for barcode information:

the packages are scanned by the code scanning device 100 on the conveyor B14, address information obtained by scanning is transmitted to the controller, and the controller generates a package sequencing list on each shunting conveyor belt and a sorting route of each package in the tower type sorting device according to a confluence rule set by a subsequent package aligning device and a shunting rule set by the diverter 3.

S03, orderly converging the parcels discharged from the plurality of conveyors B onto a converging conveyor through the parcel alignment device 2:

a. the parcels discharged from the conveyor B14 enter the parcel delivery passage 20 of the parcel alignment device 2 corresponding to the conveyor B14, and the parcels are driven by the running roller conveyor 21 to move toward the outlet of the parcel delivery passage 20 (because the timing of discharging the parcels by each conveyor B is different, the parcels initially entering each parcel delivery passage 20 have front-back position difference).

b. When a parcel in any parcel delivery channel 20 collides with the baffle 242 of the first group of aligning components 24, the parcel stops moving and triggers the photoelectric correlation sensor A243 of the first group of aligning components 24, the photoelectric correlation sensor A243 immediately transmits a signal to the controller, the controller immediately controls the cylinder 241 to start after receiving the signal, a piston rod of the cylinder 241 retracts downwards to drive the baffle 242 to fall down, and when the baffle 242 falls to a height which is wholly lower than the rolling delivery surface B of the parcel aligning device 2, the blocked parcel is released; at this time, the parcel fore-and-aft distance from the parcel to the remaining parcel delivery lanes 20 is shortened.

c. When the parcels in any parcel delivery channel sequentially collide with the baffles 242 of other groups of the aligning assembly 24 behind the first group, the control process in the step b is repeated; the parcels in all the parcel delivery lanes 20 are finally aligned in a row, and the row of parcels discharged from the outlets of all the parcel delivery lanes 20 at the same time falls onto the running converging conveyor 200 and is aligned in a column, and the column of parcels moves toward the rear end of the converging conveyor 200.

In this step, the running speed of the roller conveyor 21 is greater than the running speed of the conveyor B.

the three shunting conveyor belts are numbered as b, c and d respectively, the four small segment conveyor belts 341 are numbered as A, B, C, D respectively, 12 packages which are connected on the confluence conveyor are arranged into a group, and the groups of packages are numbered as ①, ②, ③, ④, ⑤, ⑥, ⑦, ⑧, ⑨, ⑩, ② 0 and ② 1 in sequence according to the discharging sequence;

a. before shunting the parcels, the rotating frame is in an initial state, A is over against the confluence conveyor, B is over against B, C is over against C, D is over against D, when the parcels ① discharged by the confluence conveyor fall on A, a photoelectric corresponding sensor B346 senses the parcels and transmits an electric signal to the controller, and the controller immediately and simultaneously performs two controls after receiving the signal, wherein 1, the control of starting a driving motor P32 controls the rotating frame to rotate by one station, so that A is over against D, B is over against the confluence conveyor, C is over against B, D is over against C, 2, the control of starting a driving motor Q345 corresponding to A and the parcels ① thereon synchronously run, after the substep is completed, B is received onto parcels ②, and the parcels ① on A are discharged onto D;

b. when a parcel ② discharged by the confluence conveyor falls on a parcel B, a photoelectric correlation sensor B346 corresponding to the parcel B senses the parcel and transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P32 to be started, a rotating frame to rotate by one station to enable the A to be over against C, the B to be over against D, the C to be over against the confluence conveyor and the D to be over against B;

c. when a parcel ③ discharged by the confluence conveyor falls on a sensor C, a photoelectric correlation sensor B346 corresponding to the sensor C senses the parcel and transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P32 to be started, a rotating frame to rotate by one station to enable A to be opposite to D, B to be opposite to C, C to be opposite to D and D to be opposite to the confluence conveyor, 2, a driving motor Q345 corresponding to the sensor B is controlled to be started, and B and the parcel ② on the driving motor run synchronously;

d. when a parcel ④ discharged by a confluence conveyor falls on a parcel D, a photoelectric correlation sensor B346 corresponding to the parcel D senses the parcel and transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P32 to be started, a rotating frame to rotate by one station to enable the A to be opposite to the confluence conveyor, the B to be opposite to the B, the C to be opposite to the C, and the D to be opposite to the D;

e, when the packages ⑤ discharged by the confluence conveyor fall on A, a photoelectric correlation sensor B346 corresponding to A senses the packages and transmits electric signals to a controller, and the controller immediately and simultaneously controls 1, controlling a driving motor P32 to start, rotating a rotating frame by one station to enable A to be opposite to D, D to be opposite to C, C to be opposite to B and B to be opposite to the confluence conveyor, 2, controlling a driving motor Q345 corresponding to C to start, and enabling C and the packages ③ on the C to synchronously run;

f, when the packages ⑥ discharged by the confluence conveyor fall on the B, the photoelectric correlation sensor B346 corresponding to the B senses the packages and transmits an electric signal to the controller, and the controller immediately and simultaneously controls 1, controlling a driving motor P32 to start, rotating a rotating frame by one station to enable the A to be over against C, the B to be over against D, the C to be over against the confluence conveyor and the D to be over against B;

g, when a parcel ⑦ discharged by the confluence conveyor falls on a C, a photoelectric correlation sensor B346 corresponding to the C senses the parcel and transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, controlling a driving motor P32 to start, rotating a rotating frame by one station to enable A to be over against B, B to be over against C, C to be over against D and D to be over against the confluence conveyor, 2, controlling a driving motor Q345 corresponding to the C to start, and enabling the C and the parcel ⑦ on the C to synchronously run;

h, when the packages ⑧ discharged by the confluence conveyor fall on D, a photoelectric correlation sensor B346 corresponding to D senses the packages and transmits electric signals to a controller, and the controller immediately and simultaneously controls 1, controlling a driving motor P32 to start, rotating a rotating frame by one station to enable A to be opposite to the confluence conveyor, B to be opposite to B, C to be opposite to C and D to be opposite to D;

when a parcel ⑨ discharged by a confluence conveyor falls on A, a photoelectric correlation sensor B346 corresponding to A senses the parcel and transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P32 to be started, a rotating frame to rotate by one station to enable A to be over against D, B to be over against the confluence conveyor, C to be over against B and D to be over against C;

j. when a parcel ⑩ discharged by the confluence conveyor falls on a parcel B, a photoelectric correlation sensor B346 corresponding to the parcel B senses the parcel and then transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P32 to be started, a rotating frame to rotate by one station to enable the A to be over against C, the B to be over against D, the C to be over against the confluence conveyor and the D to be over against B;

k, when the packages ⑪ discharged by the confluence conveyor fall on the C, the photoelectric correlation sensor B346 corresponding to the C senses the packages and transmits an electric signal to the controller, and the controller immediately and simultaneously controls 1, controlling a driving motor P32 to start, rotating a rotating frame by one station to enable A to be over against B, B to be over against C, C to be over against D and D to be over against the confluence conveyor, 2, controlling a driving motor Q345 corresponding to the A to start, and enabling the A and the packages ⑨ on the A to synchronously run;

i, when a parcel ⑫ discharged by a confluence conveyor falls on a D, a photoelectric correlation sensor B346 corresponding to the D senses the parcel and transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, controlling a driving motor P32 to start, rotating a rotating frame by one station to enable the A to be opposite to the confluence conveyor, the B to be opposite to the B, the C to be opposite to the C and the D to be opposite to the D;

s05, checking whether there is a missing situation of the parcel on the diversion conveyor 400 by the error correction device 300:

a. counting is started when the front end of the first parcel on the diversion conveyor 400 passes through the infrared ray passage of the timing counter 302, and counting is +1 when the front end of the second parcel passes through the infrared ray passage of the timing counter 302; the timing is started when the rear end of the first parcel on the diversion conveyor 400 passes through the infrared line of the timing counter 302, and the timing is stopped when the front end of the second parcel passes through the infrared line of the timing counter 302; and finishing one timing counting cycle, and simultaneously starting the next timing counting cycle, wherein in each timing counting cycle, the timing is started from 0 second, and the counting adopts an accumulation mode.

b. The timing counter 302 continuously compares the timing data difference of two adjacent parcels before and after the parcel is missed, if the parcel missing exists, the timing counter 302 immediately sends an alarm signal to the controller, and if the parcel missing exists, the timing data is basically consistent because the spacing between the adjacent parcels is basically consistent under normal conditions; the controller searches a package address corresponding to a first counting number before vacancy in a package sorting list, then searches backwards from the package address, relocates the address of the first package after vacancy, calculates the number of missing packages according to the relocated address, and finally replaces the address of the missing package with a blank address in the package sorting list to prevent subsequent sorting errors (if the relocated address is n away from the address of the first package before vacancy, the missing packages at the vacancy are n);

c. the controller starts the code scanner 301, the code scanner 301 scans the address of the second parcel after the vacancy and sends the address to the controller, the controller contrasts and identifies whether the address information of the parcel is consistent with the corresponding parcel information in the parcel sorting list, if so, the controller does not act, and if not, the controller controls the whole logistics sorting system to stop running, so that sorting errors are prevented.

In the step, when the number of the missing packages is more than or equal to three, the controller controls the whole logistics sorting system to stop running and simultaneously triggers an external alarm to alarm so as to remind an operator to handle the missing packages.

a. after being discharged from the diversion conveyor belt, the packages fall on the temporary stop area of the transfer plane on the top sorter of the tower type sorting device, the controller controls the rotary driving mechanism A47 to act according to the pre-calculated sorting route of the packages, so that the package falling hole A432 of the bushing 43 is selectively over against the opening at the upper end of the collecting box 44 or over against the bottom plate package falling hole B422, then the rotary driving mechanism B49 is controlled to act, the packages are shifted to the package falling hole A of the bushing 43 through the shifting fork 48, and the packages fall into the temporary stop area of the upper transfer plane of the collecting box 44 of the layer of sorter 4 or the next layer sorter 4 through the package falling hole A432 of the bushing 43.

b. After the parcel reaches the parking area of the upper transfer plane of the new layer of sorters 4, the control process of step a is repeated, so that the parcel finally falls into the corresponding collection bin 44 of the corresponding layer of sorters 4.

S07, the collection box 44 automatically closes the collection bag 45 meeting the closing standard: when the package in the collecting box 44 reaches the preset weight or height, the package overweight detector or the package ultrahigh detector immediately gives an alarm to the controller, the controller receives the alarm signal and controls the two servo motors B4451 to start simultaneously, the two servo motors B4451 respectively drive the gear 4452 to move along the rack on the side wall of the gear accommodating cavity 44362, the two servo motors B4451 respectively move in the motor sliding grooves 44361 of the inner arc-shaped side rod and the outer arc-shaped side rod, the electromagnet A446 gradually approaches the electromagnet B447, when the electromagnet A446 moves to the position closest to the electromagnet B447, the servo motor B4451 stops moving, and the opening at the upper end of the collecting bag 45 is closed;

s08, transferring the closed collection bag 45 to the stage 52 by the pick robot 53:

a. when the upper opening of the collection bag 45 is closed, the controller controls the elevating driver 51 to operate to raise the stage 52 to a height corresponding to the warning collection box 44.

b. The controller performs two controls simultaneously: 1. controlling the piston rod of the supporting hydraulic cylinder 5351 to extend, pushing the goods-taking manipulator 53 upwards, and making the clamp plate body 534 approach the iron sheet 453 of the collection bag 45; 2. the right electromagnetic plate 5342 is controlled to be powered off, so that the closed clamping plate body 534 is opened under the action of the torsion spring 5344, and the opened clamping plate body 534 is opposite to the iron sheet 453 of the collecting bag 45.

c. After the clamping plate body 534 is opened for a plurality of seconds, the controller controls the right electromagnetic plate 5342 to be electrified so that the clamping plate body 534 is closed, the iron sheet 453 of the collecting bag 45 is adsorbed on the right electromagnetic plate 5342 while the clamping plate body 534 is closed, and after the clamping plate body 534 is closed, the iron sheet 453 of the collecting bag 45 is clamped between the left iron plate 5341 and the right electromagnetic plate 5342 of the clamping plate body 534.

d. After the iron sheet 453 of the collection bag 45 is clamped, the controller firstly controls the electromagnet A446 and the electromagnet B447 to be powered off, so that the collection bag 45 is disconnected from the collection box 44, and then controls the piston rod of the supporting hydraulic cylinder 5351 to further extend, so that the goods taking manipulator 53 further pushes upwards, thereby tightening the upper end opening of the collection bag 45, pulling out the collection bag from the package pulling outlet 448 of the collection box 44, and dropping on the object stage 52.

S09, automatically opening a collection bag 45 in the collection box 44 after the collection bag 52 in the collection box 44 is transferred out:

a. after detecting that the collection bag 45 is drawn away, the package overweight detector of the collection box 44 transmits a signal to the controller, the controller receives the signal and controls the two servo motors B4451 to start, the shafts of the servo motors B4451 rotate to drive the gears 4452 to move along the racks on the side walls of the gear accommodating cavities 44362, the two servo motors B4451 respectively move in the motor sliding grooves 44361 of the inner arc-shaped side rods and the outer arc-shaped side rods, the electromagnet A446 gradually moves away from the electromagnet B447, and the movement is stopped when the electromagnet A446 moves to the initial position.

b. The controller controls the servo motor A4442 to start again, the steel wire rope 4441 is put down, the lifting frame 443 slides downwards along the sliding groove 4421 of the upright post 442 through the roller 4435, and after the steel wire rope 4441 is emptied, the lifting frame 443 slides to the height close to the bottom plate 441 of the box.

c. The controller then controls the two electromagnets a446 and the two electromagnets B447 to be electrified, and the electromagnets a446 and the electromagnets B447 respectively adsorb 4 lugs 4512 of the uppermost layer of the collection bag 45 sleeved on the left inner boss 4411, the left outer boss 4412, the right inner boss 4413 and the right outer boss 4414 of the box bottom plate 441, so that the collection bag 45 is picked up.

d. The controller finally controls the servo motor A4442 to start, the steel wire rope 4441 is retracted, the steel wire rope 4441 drives the lifting frame 443 to ascend, and the lifting frame 443 drives the newly picked collecting bag 45 to ascend and finally ascend to the initial position.

S10, the collection bag 45 on the stage 52 is transferred to the conveyor C by the pusher 6:

a. after the package is placed on the stage 52, the controller performs three controls simultaneously: 1. controlling the right electromagnetic plate 5342 to power off, and loosening the iron sheet 453 of the collection bag 45; 2. controlling the piston rod of the supporting hydraulic cylinder 5351 to retract, so that the goods taking manipulator 53 falls to the lowest position; 3. the elevating driver 51 is controlled to operate to lower the stage 52 to the lowest position.

b. When the object stage 52 is lowered to the lowest position, the controller controls the piston rod of the electric hydraulic cylinder 61 to extend, the collecting bag 45 on the object stage 52 is pushed up to the conveyor C500 through the push plate 62, and after the action is finished, the piston rod of the electric hydraulic cylinder 61 retracts to wait for the next instruction.

As shown in fig. 1 to 17, the logistics sorting system with error checking, correcting and correcting functions includes a pick-and-place separating device 1, a code scanning device 100, a parcel aligning device 2, a converging conveyor 200, an error correcting device 300, a splitter 3, a splitting conveyor 400, a tower type sorting device, and a controller (not shown).

The upper surface of the smooth separation plate 12 is a smooth plane and has a height not higher than the height of the upper surface of the conveyor a 11.

The roller conveyor 13 includes a plurality of rollers 131 arranged side by side and horizontally, a bracket a132, and a roller driving mechanism 133 for driving all the rollers 131 to rotate in synchronization. The two ends of the rollers 131 are movably mounted on the bracket a132 through bearings, a rolling transfer surface a is formed at the upper end of all the rollers 131, and the height of the rolling transfer surface a is not higher than the height of the upper surface of the smooth separation plate 12. The drum driving mechanism 133 includes a plurality of driving motors X1331, a chain X1332 and a plurality of chain wheels X1333, the plurality of chain wheels X1333 are respectively and fixedly mounted at the same end of each drum 131, a shaft of the driving motor X1331 is connected with the drum 131 at the outer end through a coupling, and the chain X1332 is wound between all the chain wheels X1333.

The upper surface of the conveyor B14 is not higher than the height of the rolling transfer surface a of the roller conveyor 13.

The number of the take-by-take separating devices 1 is not less than two (three in the present embodiment) and arranged in parallel, and the rear ends of all the conveyors B14 are arranged in line and in the same direction.

A code scanner 100 is provided on the conveyor B14 of each pick-and-place separating device 1 for scanning the bar codes of the parcels.

The wrapping and aligning device 2 is arranged at the rear end of the conveyor B14, and the wrapping and aligning device 2 comprises a roller conveyor 21, a bracket B22, a partition 23 and an aligning assembly 24.

The roller conveyor 21 comprises a plurality of rollers 211 arranged in parallel and a roller driving mechanism 212 for driving all the rollers 211 to synchronously rotate, two ends of each roller 211 are movably arranged on a support B22 through bearings, a rolling transfer surface B is formed at the upper end of all the rollers 212, and the height of the rolling transfer surface B is not higher than the height of the upper surface of the conveyor B14. The roller driving mechanism 212 comprises a driving motor Y2121, a chain Y2122 and a chain wheel Y2123. The plurality of chain wheels Y2123 are respectively and fixedly arranged at the same end of each roller 211, a crankshaft of the driving motor Y2121 is connected with the roller 211 positioned at the outer end through a coupler, and the chain Y2122 is wound among all the chain wheels Y2123.

The partition 23 is vertically arranged along the package conveying direction on the rolling conveying surface B, is fixedly installed on the support B22, is provided with a hole 231 for the roller 211 to pass through, divides the rolling conveying surface B into a plurality of package conveying channels 20 which are arranged in parallel, the inlet of each package conveying channel 20 is opposite to the rear end of one conveyor B14, and the outlets of all the package conveying channels 20 are arranged in parallel and in order and face the same direction.

The alignment assembly 24 includes a cylinder 241, a baffle 242, and a photoelectric correlation sensor a 243. The cylinder 241 is fixedly mounted on a bracket B22 with its piston rod extending upwardly. The baffle 242 is vertically arranged perpendicular to the package conveying direction on the rolling conveying surface B, the lower end of the baffle passes through the gap between the adjacent rollers 211 and is fixedly connected to the piston rod of the cylinder 241, and the baffle is synchronously lifted along with the piston rod of the cylinder 241 so as to simultaneously open or simultaneously block all the package conveying channels 20. The photoelectric correlation sensor a243 is fixedly mounted on the support B22, is arranged next to the baffle 242, is located on the side of the baffle 242 facing the entrance of the package transfer passage 20, and is located at the upper end of the rolling transfer surface B. The aligning members 24 are provided in plural sets so as to divide the rolling transfer surface B into plural sections in the parcel conveying direction.

The confluence conveyor 200 is provided at an exit of the parcel delivery passage 20 of the parcel alignment apparatus 2, which is arranged perpendicular to an exit direction of the parcel delivery passage 20.

The diverter 3 is provided at the rear end of the confluence conveyor 200, and is used for sequentially diverting the parcels discharged from the confluence conveyor 200 onto all the diversion conveyor belts 400. The diverter 3 includes a rotating frame 31, a driving motor P32, a lifting plate 33 and a small segment conveyor belt assembly 34.

The rotating frame 31 comprises a vertical rotating rod 311 and four cantilevers 312 which are uniformly distributed and fixedly connected to the upper end of the vertical rotating rod 311 in a ring shape, and the lower end of the vertical rotating rod 311 is fixedly connected to a crankshaft of the driving motor P32. The four lifting plates 33 are respectively and fixedly connected to the screwing-out ends of the four cantilevers 312, and the rotation paths of the four lifting plates 33 are all overlapped.

The short segment conveyor belt assembly 34 is fixedly installed at the upper end of the lifting plate 33, and the short segment conveyor belt assembly 34 comprises a short segment conveyor belt 341, a driving roller 342, a driven roller 343, a roller seat 344, a driving motor Q345 and a photoelectric correlation sensor B346. One end of the driving roller 342 is associated with a crankshaft of the driving motor Q345, the other end of the driving roller is movably mounted on the roller seat 344, the driving motor Q345 and the roller seat 344 are both fixedly mounted on the lifting plate 33, two ends of the driven roller 343 are movably mounted on the roller seat 344 through bearings, the small segment of the conveyor belt 341 is wound between the driving roller 342 and the driven roller 343, and the photoelectric correlation sensor B346 is mounted on the lifting plate 33 and located at the upper end of the small segment of the conveyor belt 341 and used for detecting whether a parcel falls on the small segment of the conveyor belt 341 and whether the parcel is discharged from the small segment of the conveyor belt 341.

The shunt conveyor 400 is provided at the rear end of the shunt 3, and the number thereof is three.

The error correction device 300 is provided on the diversion conveyor 400, and includes a scanner 301 and a timing counter 302 arranged in this order from the far side to the near side from the rear end of the diversion conveyor 400 (i.e., the end from which the package is discharged).

The tower sorting devices are arranged at the rear end of the diversion conveyor belt 400, the number of the tower sorting devices is three, and each tower sorting device corresponds to one diversion conveyor belt 400. The tower type sorting device comprises a sorter 4, a parcel taking device 5, a pusher 6, a conveyor C500, a cover 600 and a base 700.

The sorters 4 are stacked in the vertical direction, each sorter 4 is directly or indirectly fixedly mounted on the base 700, a cylindrical central passage 41 is arranged in the central area of each sorter, and the central passages 41 of the sorters 4 are sequentially communicated to form a vertical coherent package conveying passage 800.

Sorter 4 is from last to being equipped with down in proper order and goes up the transfer plane and down the transfer plane, is equipped with on going up the transfer plane and faces the parking area and fall regional A, is equipped with storage area and fall regional B on going down the transfer plane, goes up the transfer plane and can rotate for lower transfer plane, and then makes the selective storage area or the fall regional B that just goes down the transfer plane of falling regional A. The falling area B on the lower transfer plane of the sorter 4 faces the stop area of the upper transfer plane of the next sorter 4.

The central channel 41 is formed by an inner hole of an upper rotary ring 481 of the shifting fork 48, a central hole A431 of the bushing 43, an inner hole of a lower rotary ring 461 of the supporting seat 46 and a central hole B421 of the bottom plate 42 which are sequentially communicated from top to bottom. The upper transfer plane is a plane where the upper surface of the bushing 43 is located, the falling area a is a package falling hole a432 of the bushing 43, and the temporary stop area is an area where the bushing 43 faces the package inlet 601 of the outer cover 600. The lower transfer plane is the plane of the upper surface of the base plate 42, the storage area is the area of the base plate 42 where the collection bin 44 is mounted, and the drop area B is the parcel drop hole B422 of the base plate 42.

Sorter 4 includes base plate 42, nozzle plate 43, collection box 44, collection bag 45, support base 46, rotary drive a47, fork 48, and rotary drive B49.

The bottom plate 42 is an annular plate, a central hole B421 and a wrapping falling hole B422 located outside the central hole B421 are arranged on the bottom plate, an annular groove B423 is arranged in a region between the outside of the central hole B421 and the inside of the wrapping falling hole B422 on the upper end surface of the bottom plate, and the bottom plate 42 is directly or indirectly fixed on the outer cover 600.

The bushing 43 is an annular plate, which is provided with a central hole a431 and a wrapping drop hole a432 located outside the central hole a431, and the upper end surface of the bushing is provided with an annular groove a433 in the area between the outside of the central hole a431 and the inside of the wrapping drop hole a 432.

The collecting chamber 44 has a plurality of chambers, which are respectively installed on the bottom plate 42 around the center hole B421 of the bottom plate 42 and located outside the annular groove B423 of the bottom plate 42, and the upper ends thereof are opened. The collecting box 44 comprises a box bottom plate 441, a vertical column 442, a lifting frame 443, a lifting control mechanism 444, a closing-up component 445, an electromagnet A446, an electromagnet B447 and an ultra-high and ultra-heavy detection component.

The bottom plate 441 is a sector plate, and four corners of the bottom plate are respectively provided with a left inner boss 4411, a left outer boss 4412, a right inner boss 4413 and a right outer boss 4414.

Four upright posts 442 are fixed at four corners of the bottom plate 441 and extend upwards perpendicular to the bottom plate 441, and are provided with sliding grooves 4421.

The lifting rack 443 is a fan-shaped frame and comprises an inner arc-shaped side rod 4431, a left side rod 4432, an outer arc-shaped side rod 4433 and a right side rod 4434 which are sequentially connected, the lifting rack 443 is horizontally and movably installed between the four upright posts 442 at the four side corners through rollers 4435, and the lifting rack 443 can move up and down along the upright posts 442 through the matching of the rollers 4435 and the sliding grooves 4421. The lower end surfaces of the inner arc-shaped side rod 4431 and the outer arc-shaped side rod 4433 are respectively provided with an arc-shaped moving channel 4436, the moving channel 4436 extends along the length direction of the inner arc-shaped side rod and the outer arc-shaped side rod and penetrates through the two side end surfaces of the inner arc-shaped side rod and the outer arc-shaped side rod, and the moving channel 4436 comprises a motor sliding groove 44361 and a gear accommodating cavity 44362 which are communicated with each other up and down. The gear accommodating cavity 44362 is directly communicated with the motor sliding groove 44361, a rack is arranged on the side wall of the gear accommodating cavity 44362, and the motor sliding groove 44361 is communicated with the lower end faces of the inner arc-shaped side rod and the outer arc-shaped side rod.

The lifting control mechanism 444 comprises a steel wire rope 4441, a servo motor A4442 and a take-up and pay-off wheel 4443, one end of the steel wire rope 4441 is wound on the take-up and pay-off wheel 4443, the other end of the steel wire rope 4441 is fixedly connected to the lifting frame 443, the servo motor A4442 is fixedly installed at the top end of the upright post 442, and the take-up and pay-off wheel 4443 is fixedly connected to a shaft of the servo motor A.

The closing-in component 445 comprises a servo motor B4451 and two gears 4452, the servo motor B4451 is slidably mounted in the motor sliding groove 44361 of the inner arc-shaped side rod and the outer arc-shaped side rod respectively, the shaft of the servo motor B4451 extends into the gear accommodating cavity 44362, and the gears 4452 are fixedly connected to the shaft of the servo motor B4451, are positioned in the gear accommodating cavity 44362 and are meshed with the racks of the gear accommodating cavity 44362.

Two electromagnets A446 are respectively installed at the lower end of the servo motor B4451 and correspond to the left inner boss 4411 and the left outer boss 4412 on the case bottom plate 441.

The two electromagnets B447 are fixedly connected to the lower end faces of the inner arc-shaped side rod and the outer arc-shaped side rod respectively and correspond to the right inner boss 4413 and the right outer boss 4414 on the box bottom plate 441.

The ultra-high and ultra-heavy detecting assembly includes a wrapped ultra-high detector (not shown) mounted on the pillar 442 and a wrapped ultra-heavy detector (not shown) mounted on the floor 441.

The collection bin 44 is provided with a package pull outlet 448 on a side facing the package delivery path. The parcel drawing outlet 448 is formed by surrounding two vertical posts 442 facing one side of the parcel transport passageway 800, an inner arc-shaped side rod 4431 and the edge of the bottom plate 441 at one side of the parcel transport passageway 800.

The collection bag 45 includes a bag body 451, a drawstring 452, and an iron piece 453. The bag body 451 is in a fan-column shape matched with the shape of the collecting box 44 in an opening state, a circle of drawstring installation cavity 4511 is arranged at the upper end edge opening of the bag body 451, the drawstring installation cavity 4511 is provided with an inlet 45111 and an outlet 45112, four corners of the upper end edge opening of the bag body 451 are respectively provided with outward turned lugs 4512, and an iron ring 4513 is fixedly connected to the lugs 4512. The drawstring 452 penetrates into the drawstring installation cavity 4511 through the inlet 45111 and then penetrates out of the drawstring installation cavity 4511 through the outlet 45112, one end of the drawstring 452 is exposed out of the bag body 451 and fixedly connected with the iron sheet 453, and the other end is fixedly connected with the upper end port of the bag body 451.

The collecting bags 45 are stacked in layers on the bottom plate 441 of the collecting box 44, and four iron rings 4513 thereof are respectively sleeved on the left inner boss 4411, the left outer boss 4412, the right inner boss 4413 and the right outer boss 4414 of the bottom plate 441. The inlet of the drawstring installation cavity 4511, the outlet 45112 of the drawstring installation cavity 4511, the two ends of the drawstring 452 and the iron sheet 453 are all positioned on one side of the package pull outlet 448 of the collection box 44.

The supporting seat 46 comprises a lower revolving ring 461 and at least three supporting rods 462 fixedly connected to the upper end of the lower revolving ring 461, the lower end of the lower revolving ring 461 is movably installed in the annular groove B421 of the bottom plate 42, and the upper ends of the supporting rods 462 are fixedly connected to the lower end surface of the bushing 43.

The rotary driving mechanism A47 is associated with the supporting seat 46 to drive the supporting seat 46 to rotate in the annular groove B423 of the bottom plate 42, so as to drive the bushing 43 to rotate, and the package falling hole A432 of the bushing 43 is selectively opposite to the package falling hole B422 of the bottom plate 42 or opposite to the upper end opening of the collecting box 44. The swing drive mechanism a47 includes a drive sprocket a471, a stepping motor a472, a driven sprocket a473, and a chain a 474. The driving sprocket A471 is fixedly installed on the crankshaft of the stepping motor A472, the stepping motor A472 is directly or indirectly fixedly connected to the bottom plate 42, the driven sprocket A473 is sleeved and fixedly connected to the lower rotating ring 461 of the supporting seat 46, and the chain A474 is wound between the driving sprocket A471 and the driven sprocket A473.

The shifting fork 48 is movably arranged on the bushing 43 and comprises an upper rotating ring 481 and a sweeping arm 482, the lower end of the upper rotating ring 481 is movably arranged in an annular groove A433 of the bushing 43, and the sweeping arm 482 is fixedly connected on the outer wall of the upper rotating ring 481 and extends out of the radial outer side of the upper rotating ring 481.

A rotary drive mechanism B49 is associated with the fork 48 to drive the fork 48 for rotation within the annular groove A433 of the bushing 43. The swing drive mechanism B49 includes a driving sprocket B491, a stepping motor B492, a driven sprocket B493, and a chain B494. The driving chain wheel B491 is fixedly arranged on a crankshaft of the stepping motor B492, the stepping motor B492 is directly or indirectly fixedly connected on the outer cover 600, the driven chain wheel B493 is sleeved and fixedly connected on the upper rotating ring 481 of the shifting fork 48, and the chain B494 is wound between the driving chain wheel B491 and the driven chain wheel B493.

The parcel picker 5 is provided in the parcel transport passage 800, and includes a lifting drive 51, an object table 52, and a pickup robot 53.

The lifting driver 51 is a scissor hydraulic lifter, the lower end of which is mounted on the base 700 and is used for driving the object stage 52 to do horizontal lifting movement.

The stage 52 is fixed to the upper end of the elevating driver 51.

A pick robot 53 is mounted on the object table 52 and is used to transfer parcels in the storage area of the sorter 4 (i.e., parcels in the collection bin) onto the object table 52. The pickup manipulator 53 includes a manipulator 531, a spindle 532, a spindle base 533, a gripper 534, and a swing driving mechanism 535. The lower end of the robot 531 is mounted on the pivot base 533 via the pivot 532, the upper end is connected to the clamping plate 534, and a sliding groove 5311 is formed thereon and extends along the length direction thereof. The spindle base 533 is fixedly mounted on the stage 52. The clamping plate 534 includes a left iron plate 5341, a right electromagnetic plate 5342, a rotating pin 5343 and a torsion spring 5344. The left iron plate 5341 and the right electromagnetic plate 5342 are fixedly connected with a rotating pin sleeve into which a rotating pin 5343 is inserted at one side, the rotating pin 5343 sequentially penetrates through the rotating pin sleeve of the left iron plate 5341 and the right electromagnetic plate 5342 to movably connect the left iron plate 5341 and the right electromagnetic plate 5342, the end part of the rotating pin 5343 is fixedly welded with the upper end of the mechanical arm 531, and the left iron plate 5341 and the right electromagnetic plate rotate around the rotating pin to realize relative folding or unfolding. The torsion spring 5344 is sleeved on the pivot pin, one end of the torsion spring abuts against the inner end face of the left iron plate 5341, and the other end abuts against the inner end face of the right electromagnetic plate 5342, so that the left iron plate 5341 and the right electromagnetic plate 5342 are relatively opened to form a fixed angle. The swing driving mechanism 535 is associated with the robot arm 531 to drive the robot arm 531 to swing about the rotation shaft 532. The swing drive mechanism 535 comprises a support cylinder 5351, a movable link 5352 and a slider 5353; the support hydraulic cylinder 5351 is fixedly mounted on the stage 52; one end of the movable chain link 5352 is movably connected with a piston rod of the supporting hydraulic cylinder 5351, and the other end is movably connected with a sliding block 5353; the slider 5353 is movably mounted in the sliding groove 5311 of the robot arm 531.

The cover 600 is fixedly installed on the base 700, covers the sorter 4 and the wrapping taking device 5, and is provided with a wrapping inlet 601 at the upper end thereof, through which the wrapping falls into the sorter 4 at the uppermost end, and a wrapping outlet 602 at the lower end thereof, through which the wrapping is output. The wrap entrance 601 of the enclosure 600 is opposite the rear end of the shunt conveyor 400.

Both the pusher 6 and the conveyor C500 are mounted on the base 700, one on each side of the stage 52 of the parceller 5. The pusher 6 comprises an electric hydraulic cylinder 61 and a push plate 62, the electric hydraulic cylinder 61 is fixedly connected on the base 700, a piston rod of the electric hydraulic cylinder extends out along the horizontal direction, and the push plate 62 is fixedly connected on the piston rod of the electric hydraulic cylinder 61 and is in a vertical state.

The controller is electrically connected with a servo motor A4442, a servo motor B4451, an electromagnet A446, an electromagnet B447, a package ultrahigh detector, a package overweight detector, a stepping motor A472 and a stepping motor B492 of the sorter; the controller is electrically connected with the lifting driver 51 of the wrapping taking device 5, the right electromagnetic plate 5342 and the supporting hydraulic cylinder 5351; the controller is electrically connected with the electric hydraulic cylinder 61 of the pusher 6; the controller is electrically connected with the cylinder 241 and the photoelectric correlation sensor A243 of the wrapping and aligning device 2; the controller is electrically connected with the driving motor P32, the driving motor Q345 and the photoelectric correlation sensor B346 of the current divider 3; the controller is electrically connected with the timing counter 302 and the code scanner 301 of the error correction device 300; the controller is electrically connected to the code scanning device 100.

Preferably, the conveyor a11, the conveyor B14, the conveyor C500, the confluence conveyor 200, and the diversion conveyor 400 are belt conveyors or roller conveyors.

Claims

1. The address error correction parcel sorting method based on the time difference principle is applied to a logistics sorting system with the functions of error checking, error correction and error correction;

the logistics sorting system with the functions of error checking, error correcting and error correcting comprises a gradual-taking separation device (1), a code scanning device (100), a package aligning device (2), a converging conveyor (200), an error correcting device (300), a flow divider (3), a flow dividing conveyor belt (400), a tower type sorting device and a controller;

the gradual taking separation device (1) comprises a conveyor A (11), a smooth separation plate (12), a roller conveyor (13) and a conveyor B (14) which are arranged in close proximity from front to back in sequence;

the wrapping and aligning device (2) comprises a roller conveyor (21), a support B (22), a partition plate (23) and an aligning component (24); the roller conveyor (21) comprises a plurality of rollers (211) which are arranged in parallel and a roller driving mechanism (212) which is used for driving all the rollers (211) to rotate synchronously; the parallel assembly (24) comprises a cylinder (241), a baffle (242) and a photoelectric correlation sensor A (243); all the rollers (211) form a rolling transfer surface B at the upper end, and the rolling transfer surface B is divided into a plurality of wrapping transfer channels (20) by the partition plates (23);

the error correction device (300) comprises a code scanner (301) and a timing counter (302) which are arranged in sequence from far to near along the rear end of the confluence conveyor (200);

the flow divider (3) comprises a rotating frame (31), a driving motor P (32), a lifting plate (33) and a small-section conveyor belt component (34); the segment conveyor belt assembly (34) includes a segment conveyor belt (341), a drive motor Q (345), and a photo-correlation sensor B (346);

the tower type sorting device comprises a sorter (4), a wrapping device (5), a pusher (6) and a conveyor C (500);

a plurality of sorters (4) are stacked in the vertical direction, a cylindrical central channel (41) is arranged in the central area of each sorter (4), and the central channels (41) of the sorters (4) are sequentially communicated to form a vertical and continuous parcel conveying channel (800); the sorter (4) comprises a bottom plate (42), a bushing plate (43), a collecting box (44), a collecting bag (45), a supporting seat (46), a rotary driving mechanism A (47), a shifting fork (48) and a rotary driving mechanism B (49); the collecting box (44) comprises a box bottom plate (441), an upright post (442), a lifting frame (443), a lifting control mechanism, a closing-in component, an electromagnet A (446), an electromagnet B (447) and an ultrahigh overweight detection component, wherein the ultrahigh overweight detection component comprises a wrapped ultrahigh detector and a wrapped overweight detector; the box bottom plate (441) is provided with a left inner boss (4411), a left outer boss (4412), a right inner boss (4413) and a right outer boss (4414) at four corners respectively; the lifting control mechanism comprises a steel wire rope (4441), a servo motor A (4442) and a take-up and pay-off wheel (4443); the closing-in assembly comprises a servo motor B (4451) and a gear (4452); the collecting bag (45) comprises a bag body (451), a drawstring (452) and an iron sheet (453); four corners of the upper edge opening of the bag body (451) are respectively provided with outward turned lugs (4512), and iron rings (4513) are fixedly connected to the lugs (4512);

the parcel taking device (5) comprises a lifting driver (51), an object stage (52) and a goods taking manipulator (53); the goods taking manipulator (53) comprises a mechanical arm (531), a rotating shaft (532), a rotating shaft seat (533), a clamping plate body (534) and a swinging driving mechanism (535); the clamp plate body (534) comprises a left iron plate (5341), a right electromagnetic plate (5342), a rotating pin (5343) and a torsion spring (5344); the swing driving mechanism (535) comprises a supporting hydraulic cylinder (5351), a movable chain link (5352) and a sliding block (5353);

the pusher (6) comprises an electric hydraulic cylinder (61) and a push plate (62);

a. the roller conveyor (13) of the successive taking separation device (1) is in a running state;

b. the roller conveyor (21) of the wrapping and aligning device (2) is in a running state;

c. the baffle (242) of the package aligning device (2) is positioned at the uppermost end of the operation stroke, and the package delivery channel (20) is blocked by the baffle (242);

d. one small section of the conveyor belt (341) of the flow divider (3) is over against the rear end of the confluence conveyor (200), and the other three small sections of the conveyor belt (341) are over against the front end of the diversion conveyor belt (400);

e. a plurality of collecting bags (45) are stacked and arranged on a box bottom plate (441) of the collecting box (44);

f. the lifting rack (443) of the collecting box (44) is positioned at the uppermost end of the movement stroke of the collecting box, and absorbs and opens one collecting bag (45) through the electromagnet A, B at the lower end of the collecting box;

g. two electromagnets A (446) of the collecting box (44) are opposite to the left inner boss (4411) and the left outer boss (4412) of the box bottom plate (441) of the collecting box (44);

h. taking the object stage (52) of the wrapper (5) at the lowest position of the motion stroke;

i. the goods taking mechanical hand (53) of the parcel taking device (5) is positioned at the lowest end of the rotation stroke;

j. taking a right electromagnetic plate (5342) of the wrapper (5) to be in an electrified state;

k. a piston rod of an electric hydraulic cylinder (61) of the pusher (6) is in a contraction state;

the method is characterized in that: the parcel sorting process comprises the following steps:

a. placing the parcels on a conveyor A (11) in operation, and after the parcels are discharged from the rear end of the conveyor A (11), entering and resting on a smooth separation plate (12);

b. then enters the smooth separation plate (12) to contact with the parcels and pushes the parcels which enter the smooth separation plate (12) first, so that the parcels which enter the smooth separation plate (12) first are pushed to a roller conveyor (13);

c. the parcels at the front end are driven by the roller conveyor (13) to move so as to be separated from the parcels at the rear end, the parcels enter the running conveyor B (14) after being discharged from the roller conveyor (13), and the parcel intervals on the conveyor B (14) are equal;

the packages are scanned on a conveyor B (14) by a code scanning device (100), address information obtained by scanning is transmitted to a controller, and the controller generates a package sequencing list on each shunting conveyor belt and a sorting route of each package in the tower type sorting device according to a confluence rule set by a subsequent package aligning device and a shunting rule set by a diverter;

a. the parcels discharged from the conveyor B enter a parcel delivery channel (20) of a parcel aligning device corresponding to the conveyor B, and the parcels are driven by a running roller conveyor (21) to move towards the outlet of the parcel delivery channel (20);

b. when a parcel in any parcel delivery channel (20) collides with a baffle (242) of the first group of aligning components (24), the parcel stops moving and triggers a photoelectric correlation sensor A (243) of the first group of aligning components (24), the photoelectric correlation sensor A (243) immediately transmits a signal to the controller, the controller immediately controls the cylinder (241) to start after receiving the signal, a piston rod of the cylinder (241) is retracted downwards, the baffle (242) is driven to fall, and when the baffle (242) falls to a height which is lower than the rolling delivery surface B of the parcel aligning device (2) as a whole, the blocked parcel is released; at the moment, the front-back distance of the parcel from the rest parcel delivery passages (20) is shortened;

c. when the parcels in any parcel delivery channel (20) sequentially collide with the baffles (242) of other groups of the merging assemblies (24) behind the first group, the control process in the step b is repeated; finally, the parcels in all the parcel delivery passages (20) are arranged in a row, the row of parcels discharged from the outlets of all the parcel delivery passages (20) simultaneously falls on a running converging conveyor (200) and is in a column, and the column of parcels moves towards the rear end of the converging conveyor (200);

the three shunting conveyor belts are numbered as b, c and d respectively, the four small-section conveyor belts (341) are numbered as A, B, C, D respectively, 12 packages which are connected on the confluence conveyor are arranged into a group, and the groups of packages are numbered as ①, ②, ③, ④, ⑤, ⑥, ⑦, ⑧, ⑨, ⑩, ② 0 and ② 1 in sequence according to the discharging sequence;

a. before shunting the parcels, the rotating frame is in an initial state, wherein A is over against a confluence conveyor, B is over against B, C is over against C, and D is over against D, when the parcels ① discharged by the confluence conveyor fall on A, a photoelectric correlation sensor B (346) corresponding to A senses the parcels and transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P (32) to be started, the rotating frame rotates one station to enable A to be over against D, B to be over against the confluence conveyor, C to be over against B, and D to be over against C, 2, a driving motor Q (345) corresponding to A to be started, and A and the parcels ① on the driving motor A run synchronously, after the sub-steps are finished, B is received to the parcels ②, and the parcels ① on A are discharged to D;

b. when a parcel ② discharged by the confluence conveyor falls on a parcel B, a photoelectric correlation sensor B (346) corresponding to the parcel B senses the parcel and transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P (32) to be started, a rotating frame to rotate by one station to enable the A to be over against C, the B to be over against D, the C to be over against the confluence conveyor and the D to be over against B;

c. when a parcel ③ discharged by the confluence conveyor falls on a parcel C, a photoelectric correlation sensor B (346) corresponding to the parcel C senses the parcel and transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P (32) to be started, a rotating frame to rotate by one station to enable A to be over against D, B to be over against C, C to be over against D and D to be over against the confluence conveyor, 2, a driving motor Q (345) corresponding to the B is controlled to be started, B and the parcel ② on the B synchronously run;

d. when a parcel ④ discharged by a confluence conveyor falls on a parcel D, a photoelectric correlation sensor B (346) corresponding to the parcel D senses the parcel and transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P (32) to be started, a rotating frame to rotate by a station to enable the A to be opposite to the confluence conveyor, the B to be opposite to the B, the C to be opposite to the C, and the D to be opposite to the D;

e, when a parcel ⑤ discharged by the confluence conveyor falls on the conveyor A, a photoelectric correlation sensor B (346) corresponding to the conveyor A senses the parcel and transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P (32) to be started, a rotating frame to rotate by a station to enable the A to face D, the D to face C, the C to face B and the B to face the confluence conveyor, 2, a driving motor Q (345) corresponding to the C to be started, and the C and the parcel ③ on the C synchronously operate;

f, when a parcel ⑥ discharged by the confluence conveyor falls on a parcel B, a photoelectric correlation sensor B (346) corresponding to the parcel B transmits an electric signal to a controller after sensing the parcel, and the controller immediately and simultaneously controls 1, a driving motor P (32) to be started, a rotating frame to rotate by a station to enable the A to be over against C, the B to be over against D, the C to be over against the confluence conveyor and the D to be over against B;

g, when a parcel ⑦ discharged by the confluence conveyor falls on a parcel C, a photoelectric correlation sensor B (346) corresponding to the parcel C transmits an electric signal to a controller after sensing the parcel, and the controller immediately and simultaneously controls 1, a driving motor P (32) to be started, a rotating frame to rotate by a station to enable A to be over against B, B to be over against C, C to be over against D and D to be over against the confluence conveyor, 2, a driving motor Q (345) corresponding to the parcel C to be started, and C and the parcel ⑦ on the C synchronously operate;

h, when a parcel ⑧ discharged by the confluence conveyor falls on a parcel D, a photoelectric correlation sensor B (346) corresponding to the parcel D transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P (32) to be started, a rotating frame to rotate by a station to enable the A to be opposite to the confluence conveyor, the B to be opposite to the B, the C to be opposite to the C, and the D to be opposite to the D;

when a parcel ⑨ discharged by a confluence conveyor falls on a, a photoelectric correlation sensor B (346) corresponding to the A senses the parcel and transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P (32) to be started, a rotating frame to rotate by a station to enable the A to be over against D, the B to be over against the confluence conveyor, the C to be over against B and the D to be over against C;

j. when a parcel ⑩ discharged by a confluence conveyor falls on a parcel B, a photoelectric correlation sensor B (346) corresponding to the parcel B senses the parcel and then transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P (32) to be started, a rotating frame to rotate by one station to enable the A to be over against C, the B to be over against D, the C to be over against the confluence conveyor and the D to be over against B;

k, when a parcel ⑪ discharged by the confluence conveyor falls on a container C, a photoelectric correlation sensor B (346) corresponding to the container C senses the parcel and transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P (32) to be started, a rotating frame to rotate by a station to enable the A to be over against B, the B to be over against C, the C to be over against D and the D to be over against the confluence conveyor, 2, a driving motor Q (345) corresponding to the A to be started, the A and the parcel ⑨ on the A synchronously operate, after the sub-steps are completed, the D is connected to a parcel ⑫, and the parcel ⑨ on the A is discharged onto the B;

i, when a parcel ⑫ discharged by a confluence conveyor falls on a parcel D, a photoelectric correlation sensor B (346) corresponding to the parcel D senses the parcel and transmits an electric signal to a controller, and the controller immediately and simultaneously controls 1, a driving motor P (32) to be started, a rotating frame to rotate by a station to enable the A to be opposite to the confluence conveyor, the B to be opposite to B, the C to be opposite to C and the D to be opposite to D;

a. counting is started when the front end of a first parcel on the diversion conveyor belt (400) passes through the infrared channel of the timing counter (302), and counting is +1 when the front end of a second parcel passes through the infrared channel of the timing counter (302); timing is started when the rear end of a first parcel on the diversion conveyor belt (400) passes through the infrared line of the timing counter (302), and timing is stopped when the front end of a second parcel passes through the infrared line of the timing counter (302); thus, a timing counting cycle is completed, and the next timing counting cycle is started at the same time, wherein in each timing counting cycle, the timing is started from 0 second, and the counting adopts an accumulation mode;

b. the timing counter (302) is used for debugging by continuously comparing timing data differences of two adjacent parcels before and after checking, if the parcels are missing, the timing counter (302) immediately sends an alarm signal to the controller, the controller starts the code scanner (301) after receiving the alarm signal, and the code scanner (301) scans the address of the first parcel after the vacancy is found and sends the address to the controller; the controller searches a package address corresponding to a first counting number before vacancy in a package sorting list, then searches backwards from the package address, relocates the address of the first package after vacancy, calculates the missing number of the packages according to the relocated address, and finally replaces the address of the missing package with a blank address in the package sorting list to prevent subsequent sorting errors;

c. the controller starts the code scanner (301), the code scanner (301) scans the address of the second package after vacancy and sends the address to the controller, the controller contrasts and identifies whether the address information of the package is consistent with the corresponding package information in the package sorting list, if so, the controller does not act, and if not, the controller controls the whole logistics sorting system to stop running, so that sorting errors are prevented;

s06, the parcels discharged from the confluence conveyor (200) and entering the tower type sorting device are sorted into the corresponding collection boxes (44):

a. after being discharged from the diversion conveyor belt, the packages fall on the temporary stop area of the transfer plane on the sorter (4) on the uppermost layer of the tower type sorting device, the controller controls the rotary driving mechanism A to act according to a pre-calculated sorting route of the packages, so that the package falling hole A (432) of the bushing (43) selectively faces an opening at the upper end of the collecting box (44) or the package falling hole B of the bottom plate (441), then the rotary driving mechanism B is controlled to act, the packages are shifted to the package falling hole A of the bushing (43) through the shifting fork (48), and then the packages fall into the temporary stop area of the upper transfer plane of the collecting box (44) of the sorter (4) on the current layer or the sorter (4) on the next layer through the package falling hole A of the bushing (43);

b. after the packages reach the temporary stop area of the upper transfer plane of the new layer of sorter (4), the control process of the step a is repeated, so that the packages finally fall into the corresponding collection boxes (44) of the corresponding layer of sorter;

s07, automatically closing the collection bag meeting the closing standard by the collection box: when the package in the collecting box reaches the preset weight or height, the package overweight detector or the package ultrahigh detector immediately alarms to the controller, the controller controls two servo motors B (4451) to start simultaneously after receiving an alarm signal, the two servo motors B (4451) respectively drive a gear (4452) to move along a rack on the side wall of a gear accommodating cavity (44362), the two servo motors B (4451) respectively move in motor chutes of an inner arc-shaped side rod and an outer arc-shaped side rod, an electromagnet A gradually approaches to the electromagnet B, when the electromagnet A moves to the position closest to the electromagnet B, the servo motor B stops moving, and at the moment, an opening at the upper end of the collecting bag is closed;

s08, transferring the closed collection bag (45) to the object stage (52) through the goods taking manipulator (53):

a. after the upper end opening of the collecting bag (45) is closed, the controller controls the lifting driver (51) to act, and the object stage (52) is lifted to the height corresponding to the alarming collecting box (44);

b. the controller performs two controls simultaneously: 1. controlling a piston rod of the supporting hydraulic cylinder (5351) to extend out, pushing the goods taking manipulator (53) upwards, and enabling the clamp plate body (534) to approach an iron sheet (453) of the collecting bag (45); 2. controlling the right electromagnetic plate (5342) to be powered off, so that the closed clamping plate body (534) is opened under the action of the torsion spring (5344), and the opened clamping plate body (534) is opposite to the iron sheet (453) of the collecting bag (45);

c. after the splint body is opened for a plurality of seconds, the controller controls the right electromagnetic plate (5342) to be electrified to fold the splint body (534), the iron sheet (453) of the collection bag (45) is adsorbed to the right electromagnetic plate (5342) while the splint body (534) is folded, and after the splint body (534) is folded, the iron sheet (453) of the collection bag (45) is clamped between the left iron plate (5341) and the right electromagnetic plate (5342) of the splint body (534);

d. after the iron sheet (453) of the collection bag (45) is clamped, the controller firstly controls the electromagnet A (446) and the electromagnet B (447) to be powered off, so that the collection bag (45) is disconnected from the collection box (44), and then controls the piston rod of the supporting hydraulic cylinder (5351) to further extend, so that the goods taking manipulator (53) further pushes upwards, so that the upper end opening of the collection bag (45) is tightened, pulled out from the package pulling outlet of the collection box (44), and falls on the object stage (52);

s09, automatically opening a collection bag (45) in the collection box after the collection bag (45) in the collection box (44) is transferred out:

a. after detecting that the collection bag (45) is pulled away, a wrapping overweight detector of the collection box (44) transmits a signal to a controller, the controller receives the signal and controls two servo motors B (4451) to start, a crankshaft of the servo motor B (4451) rotates to drive a gear (4452) to move along a rack on the side wall of a gear accommodating cavity (44362), the two servo motors B (4451) respectively move in motor chutes (44361) of an inner arc-shaped side rod and an outer arc-shaped side rod, an electromagnet A (446) gradually moves away from the electromagnet B (447), and the electromagnet A (446) stops moving when moving to an initial position;

b. the controller controls the servo motor A (4442) to start again, the steel wire rope (4441) is put down, the lifting frame (443) slides downwards along the sliding groove (4421) of the upright post (442) through the sliding block, and after the steel wire rope (4441) is emptied, the lifting frame (443) slides to the height close to the bottom plate (42) of the box;

c. the controller then controls the two electromagnets A (446) and the two electromagnets B (447) to be electrified, the electromagnets A (446) and the electromagnets B (447) respectively adsorb 4 lugs of the uppermost layer of the collection bag (45) sleeved on the left inner boss (4411), the left outer boss (4412), the right inner boss (4413) and the right outer boss (4412) of the box bottom plate (42), and therefore the collection of the collection bag is completed;

d. the controller finally controls the servo motor A to start, the steel wire rope (4441) is retracted, the steel wire rope (4441) drives the lifting frame (443) to ascend, the lifting frame (443) drives the newly-picked collecting bag (45) to ascend, and finally the collecting bag ascends to the initial position;

s10, the collection bag (45) on the stage is transferred to the conveyor C by the pusher (6):

a. after the parcel lands on the object stage (52), the controller performs three controls simultaneously: 1. controlling the right electromagnetic plate (5342) to be powered off, and loosening the iron sheet (453) of the collection bag (45); 2. controlling a piston rod of the supporting hydraulic cylinder (5351) to retract, and enabling the goods taking manipulator (53) to fall to the lowest position; 3. controlling the lifting driver (51) to act to lower the objective table (52) to the lowest position;

b. when the object stage (52) descends to the lowest position, the controller controls the piston rod of the electric hydraulic cylinder (61) to extend out, the collecting bag (45) on the object stage (52) is pushed up to the conveyor C (500) through the push plate (62), and after the action is finished, the piston rod of the electric hydraulic cylinder (61) retracts to wait for the next instruction.

2. The address error correction package sorting method based on the time difference principle as claimed in claim 1, wherein: in step S01, the parcels are placed in a row on the conveyor a (11); the running speed of the conveyor A (11) is less than the rolling linear speed of the roller conveyor (13) and less than or equal to the running speed of the conveyor B (14); the running speeds of all the conveyors B (14) are consistent; in step S03, the running speed of the roller conveyor (21) is greater than the running speed of the conveyor B (14).